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Title: Test beam measurements of calorimeters for the PHENIX upgrade at RHIC

Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: 38th International Conference on High Energy Physics; Chicago; 20160803 through 20160810
Country of Publication:
United States
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; sPHENIX; Monte Carlo; calorimeters; Quark Gluon Plasma; Relativistic Heavy Ion Collider

Citation Formats

Franz A. Test beam measurements of calorimeters for the PHENIX upgrade at RHIC. United States: N. p., 2016. Web.
Franz A. Test beam measurements of calorimeters for the PHENIX upgrade at RHIC. United States.
Franz A. 2016. "Test beam measurements of calorimeters for the PHENIX upgrade at RHIC". United States. doi:.
title = {Test beam measurements of calorimeters for the PHENIX upgrade at RHIC},
author = {Franz A.},
abstractNote = {},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 8

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  • Direct photons are a powerful probe to study the property of quark-gluon plasma (QGP) in high energy heavy-ion collisions. In non-central collisions, the anisotropy of the collision region produces the different pressure gradients and particle density that results in different anisotropy of particle emission, depending on the production processes of photons. Therefore, an azimuthal anisotropy parameter {upsilon}{sub 2} is a powerful tool to explore the source of direct photons. We report on the latest direct photon analysis of the nuclear modification factor in {radical}s{sub NN} = 200 GeV and 62.4 GeV Au + Au collisions, and {upsilon}{sub 2} at highmore » p{sub T} in 200 GeV Au + Au collisions at RHIC-PHENIX (Run4). We also present the analysis status, using a larger statistics and better reaction plane information from a new detector available from RHIC Run7 data.« less
  • Relativistic heavy-ion collisions offer a powerful tool to explore the phase transition between normal nuclear matter and strongly interacting matter governed by partonic degree of freedom. Measurement of light vector mesons such as {phi} and {omega} in heavy-ion collision provides important probes to investigate the property of the partonic matter. The Masses, lifetimes and branching ratios of these mesons are expected to change due to the partial restoration of chiral symmetry in extremely high temperature medium. The PHENIX experiment at RHIC is uniquely suitable for this study because PHENIX has a versatile detector with excellent capabilities to measure electrons andmore » photons as well as hadrons in a wide dynamic range. Systematic studies of multiple decay channels for light vector mesons make it possible to extract important information from the complex physics environment of heavy-ion collision. We will report the latest results of light vector meson measurements for multiple decay channels ({phi} {yields} e{sup -}e{sup +}, K{sup +}K{sup -} and {omega} {yields} e{sup -}e{sup +}, {pi}{sup 0}{pi}{sup +}{pi}{sup -}) in various collision systems from proton+proton to Au+Au collisions over several collision energies up to {radical}s{sub NN} = 200 GeV.« less
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